K-Sport or D2??
 

Looking to upgrade my front brakes. Which is a better kit, K-Sport or D2?

Cheers all

I belive there the same kit

Was told k sports are not as strong as d2. I got d2s and they wicked

Easy, Brembos:lol1:

All you need for fast road use.

Cheaper to buy, and MUCH cheaper for replacement pads and discs.

I had Brembos on my UK300 and STI, D2's on my 350bhp classic and K Sports on my P1.

Attachment 55998

Attachment 55999

Attachment 56000

I heard that k-sports have dust covers for the pots??

I agree that Brembos are great brakes but i want 8pots with 356mm disks

They are the same brakes from the same factory

Did you notice any difference in how they perform?

they are the exact same

i use brembos with performance friction 2 piece rotors and carbotec xp12 pads .as good as AP

Yeah I know there the same but are they any better lol :D


K sport and D2 are the same kits , made in the same factory but badged up differently , they do not have any dust seals , they only have hydraulic seals , which are fitted to the piston not inside the bore of the caliper like most calipers are .

Speak to Ian about his AP kits ;) much better all round :D

Tony:)

Same as BC Coilovers,Megan,Apex etc. made in same factory,but difference between these few is different.

Ian how many times you are replaced pistons/dust shield in Brembo/AP or rebuild'd calipers?

And how many times you are replaced pistons in K-sport or rebuild'd calipers?

I'm pretty sure you are done more Brembo/AP than K-sport,maybe i'm wrong.

Here is quote form K-sport website about the dust shields:

If you are looking on feedback on these brakes,you will see its nothing wrong with these brakes,people like them and people use them on track days/TA or drag.

Who cares how much cost,if they're perform better that's the most important thing in my view,as i said everything is down to pads,if you are using supplied K-Sport pads,yes these are horrible,but with PF pads or even EBC BlueStuff NDX...

If AP cost similar money than K-Sport i would go with these without the doubts,but if they're cost 2-3 times more than K-sport,sorry no.

Jura

Jura you have not seen the cost of Ian's AP setup, its not much more than the Ksport/D2's ;)

Tony:)

Cheers for the info guys. Just phone Apex (K-Sport) and they are out of stock with the set up that i want. Any other dealers? had a uk google search and nothing. Apex said they'll have some in by the 20th Dec.

Rather have them sooner than later. My brakes are terrible and this bad weather is not helping.

Aztec Performance have some in stock on their website but the number is just ringing out

Anyone used this company??

Thanks no,i will rather keep mine K-sport and later on i've just upgrade mine discs to PF;)


Jura

Bob is here too,but sometimes is hard to hold.

Just try and send him too PM and ring him later.


Jura

The AP and Brembo calipers also use aluminium pistons ,

I have changed pistons on the older style AP calipers , as they don't have a rubber boot covering the pistons , they have a dust seal sitting in a groove at the top of the bore of the calipers , this seal will stop muck/dust getting into the caliper , but will not protect the pistons.

The later style AP calipers with the rubber boots covering the pistons are the same design as the STi calipers , I have never had to change the pistons to date on either of these calipers , only seals.

The downside of the K sport / D2 caliper designs is that the way they seal , An AP or Brembo caliper has the hydraulic seal in a groove machined into the bore of the caliper , so the piston will move on this seal , if the bore or piston is ever scored or damaged , then it could still be used again , you would fit new pistons with a perfect surface that seals on the actual seal itself , if the K sport caliper bores get scored or damaged , the caliper is scrap , as the seal on these are fitted to the bottom of the piston , its the piston and seal that move in the bore , so the surface of the bore always has to be perfect

Attachment 56001

Here you can see the calipers with the pistons out , the 2 seals are at the bottom of the bore , so there is nothing stopping dust getting into the bore down to the first seal , this could be a problem with people getting damaged bores , which cannot be repaired , I haven't heard of anyone having any problems yet , but it can happen

The AP or Brembo seals are a much better design in my opinion

Thanks for the info Ian. The only thing thats put me off AP brakes is the price. My budget is £1000 and for the money Apex can do 8pots with 356mm for £849. I know AP are a better brake and i have done my research, but for the money K-Sports are winning.

Ian but this is older model of K-Sport,i think he little bit modified caliper and other things,but maybe again i'm wrong

I've done research before i bought mine K-sport front and rear one,i know they don't have dust seals and from mine experience and lots of search on other forums,.


Jura

Everyone thinks that more pots or bigger discs always = better, thats not necessarily true, I think its about the ammount of pressure on the surface area or something like that, and if you have a nice chat with Ian (oh and you need 18's for the 356mm), you may get something within your budget that are better ;):D

Tony:)

Tony due this i said everything is done to pads and disc used,i've done mine research on this too.

OE 4pots are poor on New age and on classic too if you are looking for above 350bhp or less,i've tried too OE 4pots with big brake conversion,but still not the best solution there.

Jura

I agree Tony. Im sure that the AP 4 or 6 pots with 330mm might have the same or better stopping performance but i have never drove a car with APs on. I drove my friends Sti Blob with the same K-sport kit i want and was amazed with the brakes.

I own a Classic so a less weight. Ive got 18s so the 356mm disks wont be a problem

We can airfreight them to get them here quicker :)

With regards to reliability of the kits, theyre superb and have been proven to be so over the past 6 years and many thousands of kits that we have sold :)

I changed my subaru 4 pots on my standard classic back in 2001 to Brembo/ap (308mm), much improved ;)

Tony:)

Japspeed do d2 brakes

Cheers Bren for your help, looking forward to getting those brakes on my car

What fluid would you recommend, Dot 5.1?

Yep. We have just recieved a batch of Halfords Dot 5.1 high performance fluid. Dont laugh, we have found it to be an excellent fast road and limited track product. Its very good value for money too.

We also have Motul Dot 5.1 and can also supply Moutl RBF 600 and RBF 660 should you want to go hardcore.

Cheers Bren, might try the Halfords 5.1 :)